Change-speed gear.



EATENTED AEE. '16. 19o?.

E. T. THEMAS.

GEANGE SPEED GEAR.

APPLIUATION FILED 00T.4. 1908.

PATBNTBD APR. 16, 1907.

H. T. THOMAS, CHANGE SPEED GEAR.

APPLICATION FILED OUT. 4. 190B.

'n SHEETS-SHEET n.

WITNESSES E, f mi To all ip h'omzltmayaoncern;

Be itknwn'thaitl, HORACE TQ THOMAS, a -oitizenjofthellnited States;residing at Lan- Q sing; bounty' of-gngham,

Iprovement in Change-S eed Gearsyand il fthe line 33,

'casing 8"being`eu't away, ofthe arbor-bear" .exact description' -oUNITED l STAT-Rs PATENT OFFICE.

'HORACE T; THOMAS, OF LANSING, MICHIGAN; AssiGNoR To REO MOTOR OARQOMRANY, OELANSING,

MICHIGAN; A. CORPORATION; jCHANGE-'SPEDGEA i 850,857.' l Bpeeication ofLettera Patent. f Appleman @1.a omber'4,1aoe. atrium. ss'1.349.

overthe Yportion81 of the casing .-8 81.'

Stateof Michigan; 81 of the casing andthe dikQ.' new and useful 1ndiskri'phera iiange of the 9, and 2G-represents -tfof 'a-fulL-olear, and jthe name, auchv 'as will enable o theijejskille *inL the"art to -Whichit. ertains tomalge and use the sante, rperelnoe in 4-nad tothe.accompanying drawings,

forma partjpf this specification. My' 'inven' tionf relates to changespeed gears',i=rand foonsis ts 4 the iin royements ihereinateriesoribeifandf pointe out in the olaims'. .v

v y In the'aooompanying'drawings, Figure 1 is a 'longitudinal section.Fig. `2,is 'a lsection approximately on---the line 2 2, Fig-.1, lookingfrom-the left of-j Fig'.y Fig. 3 is afse'otion on Fig.A '1; the adjacentface-of the and also a portion declare the followin oasung-S 81` A v1213re resent an' actuating mechanism by which t e disk dinally ofthe hub ofthe wheel 10110 s et the clutch 91 and lunite theljdskg with the' cas--in 881. 2; -t-

he portion 8. of the is; provided near its periphery Withint'ernlgear-teeth 82. 15 isa double gearfwheelseoured bya key 151 to.' theshaft 4.', l`he doubleearwheel 15 islmade upof thefsingle gear-w eels24-of relative larger diameterA and 23"p'f smaller he 7 To 91 representsa-clut'elr between portion 25 re resents a-brakestrap.uponthe-pe# a'similar-angeup'o'n the periphery-5f the' j ratateaapril 19,1907.

turned inward to form la.. .ange e-Jtendingl 9 maytbemoved 'longitu- 'y1616 arefgeartvheele7-sheteeth.of which engage the tee'th;of thegear-Wheel '24 .and the 41's the drivin -s aft. :.5 5 is asleevefagapted tOJotate around the- A engagethe teeth ofi-the internalgearing-14.` shaft 4. i f2() 20 are gear'fiyheels the, teeth of which '6is a Sprocket-'wheeluponthesleeve 5, enga'e'-.theteeth*" `f -the`gear-..wheels 23 and through whieh sprocket-Wheel the power' is. '21.gihefearwheels 20 areinounted upon designedto 'betran'smttedbya chain;(Not "arbore 19, eating [and frame 18, 8c shown.)l i .-"an'dthegearwheel A-'2laire mopnted'fupon l 7is akdisk scoured 'by a key .152tio the; arbore.2.2;bearingI frame.

. The Operatnwof he ove-described de- 'v `Wheel 10 is mounted 45' `uponthe hub-Of thefdisk 7. 81 is a seoondportion'of the casing, seo'nedtothe Ortion 8 to'oomplete the inc losingoasing. e por- -Wh e tion 81 ofthe easing is mounted to turnu en ment-the disk-Qian he 25 u 'onitsperpliery'. 1 5 being to rotate in abearing' 'keye to'thefwheelyllbythejkey. Or iin' 11 around the shaft 4 andiSprOVided nea'1' }itspr'etg'e'nts said Wheel f lDinIQWftng; and moperiphery with int rn'algear-teeth 14. vvin'ftfh surroundingthe hubofthe ar 82,.carrying,w ithit the,

IOO

speed, the apparatus 12 13 is operated to cause the clutch 91 toy .ngagethe disk i) with the casing 51` 8, in which case' all the parts arelocked together and the disk 7, sleeve 5, and sprocket-wheel turns withthe shaft 4.

It will be seen that the casing 8 81, with the internal gear 82, forms al'ulcrum member for the train of direct gears 24 16, and the Wheel 10,with its internal gear-teeth 14, forms a fulcrurn member for the trainof reverse-gears 23 20 21.

What I claim' is- $1. The combination of a 'driving and a drlven member,a train ol' direct gears including a fulcrum member between said drivingand driven members, a train of reverse-gears including a fulcrum memberbetween said driving and driven members, means for preventing andpermitting rotation of one or 'the other of said fulcrum members, and

-means for connecting and disconnecting said fulcrum members.

2. The combination .df a driving and a driven member, a train ofdirectgears includmg a ulcrum member between said -driving and driven members,a train of reverse-gears including a fulcrum memberA between saiddriving ,and driven members, means for pre"-- venting and permittingrotation of one or the otherof said fulcrum members, and means forconnecting .and disconnecting said fulcrum members, one. ofsaid.l'ulcrum members beingshaped to form Ia casing inclosing said .gearingand the other fulcrum m'e'inber.

3. '.lhe combination of the shaft 4, disk 7 arbors on said disk, agear-wheel Z4 .on said having a hub sleeved-on said shalt, gear-- wheelson said shaft and disk engaginV with each other, a WheelV 1() having ahu Is eeved on said shaft, gear-'wheels upon said shaft.

and disk engaging with each other, a casing pivoted upon said hubs andinclosing` Asaid gearing, said 'casing being provided with gearteeth toengage with one of said intermeshmg gearings, gear-teeth on the Wheel10- ada .ted

to engage the other of said intermes 'ng gearings, and means for actingupon the hub of the wheel 1() for restraining said wheel from rotatiohand releasin means for connectingr the w eel 10 with said the same, and

casing and releasing the same,substantiallfy7 as and for the purposedescribed.

5. rl`he combination of the shaft 4 disk 7, having a hub sleeved on saidshaft, 'gearwheels on said4 shaft and disk envavin 'with each other, awheel 1() having a s? eved on saidshaft, ear-wheels upon said shaft 4anddisk engaging With-each other, a'casing pivoted upon said hubs andinclosing said gearing, said casing being provided with-gearteeth toengage with one of said intermeshing gearings, a part slidingly keyedupon the hub -of the wheel 10, outsidevof said casing, a

clutch between said' part and vsaid 'casing adapted to be operated bythemovementof said part -to engage, Said casing therewith, means foractuating said part, and means for liolding said .part from rotation,substantial ly as and for the purpose described.

6. The combination of a drivin and a driven' men-iber, a train of gearsinc uding a fulcrum'member between said driving and driven members, asecond -train of' gears in- -cludmg a fulcrum member between saiddriving land driven members, means for preventing and permittingrotation of one or

